Journal
OPTICAL MATERIALS
Volume 35, Issue 9, Pages 1664-1668Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2013.04.028
Keywords
SrLaAlO4; Me4+ ion; Spectroscopy
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Funding
- Polish National Research Center [Nr NN 515 500 440]
- European Union within the European Regional Development Fund through grant Innovative Economy [POIG.01.01.02-00-108/09]
- Ministry of Education, Science, Youth and Sports of Ukraine
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Spectroscopic study of Me4+ ions in SrLaA104 has been performed in the 5-500 K temperature range. The photoluminescence of Me4+ ions around 714 nm originates from the E-2 -> (4)A(2) transition. The energy distance between the E-2 and T-4(2) levels is about 2500 cm(-1). The Mn4+ emission in SrLaAlO4 undergoes rapid thermal quenching already above 250 K that can be caused by intrinsic point defects of the host having energy levels overlapping with the T-4(2) level of Me- ions. (C) 2013 Elsevier B.V. All rights reserved.
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